System.Configuration.SectionUpdates.GetUnretrievedGroupNames C# (CSharp) Метод

        internal string[] GetUnretrievedGroupNames() {
            ArrayList unretrievedGroups = new ArrayList();

            foreach (DictionaryEntry de in _groups) {
                string group = (string) de.Key;
                SectionUpdates sectionUpdates = (SectionUpdates) de.Value;
                if (sectionUpdates.HasUnretrievedSections()) {
                    unretrievedGroups.Add(group);
                }
            }

            if (unretrievedGroups.Count == 0)
                return null;

            string[] groupNames = new string[unretrievedGroups.Count];
            unretrievedGroups.CopyTo(groupNames);
            Array.Sort(groupNames);
            return groupNames;
        }

        private void WriteUnwrittenConfigDeclarationsRecursive(SectionUpdates declarationUpdates, XmlUtilWriter utilWriter, int linePosition, int indent, bool skipFirstIndent) {
            string[] unretrievedSectionNames = declarationUpdates.GetUnretrievedSectionNames();
            if (unretrievedSectionNames != null) {
                foreach (string configKey in unretrievedSectionNames) {
                    Debug.Assert(!IsImplicitSection(configKey), "We should never write out an implicit section");
                    if (!skipFirstIndent) {
                        utilWriter.AppendSpacesToLinePosition(linePosition);
                    }
                    skipFirstIndent = false;

                    DeclarationUpdate update = declarationUpdates.GetDeclarationUpdate(configKey);
                    if (update != null && !string.IsNullOrEmpty(update.UpdatedXml)) {
                        utilWriter.Write(update.UpdatedXml);
                        utilWriter.AppendNewLine();
                    }
                }
            }

            string[] unretrievedGroupNames = declarationUpdates.GetUnretrievedGroupNames();
            if (unretrievedGroupNames != null) {
                foreach (string group in unretrievedGroupNames) {
                    if (TargetFramework != null) {
                        ConfigurationSectionGroup g = GetSectionGroup(group);
                        if (g != null && !g.ShouldSerializeSectionGroupInTargetVersion(TargetFramework)){
                            declarationUpdates.MarkGroupAsRetrieved(group);
                            continue;
                        }
                    }
                    if (!skipFirstIndent) {
                        utilWriter.AppendSpacesToLinePosition(linePosition);
                    }
                    skipFirstIndent = false;

                    SectionUpdates declarationUpdatesChild = declarationUpdates.GetSectionUpdatesForGroup(group);
                    DeclarationUpdate groupUpdate = declarationUpdatesChild.GetSectionGroupUpdate();
                    if (groupUpdate == null) {
                        utilWriter.Write("<sectionGroup name=\"" + group + "\">");
                    }
                    else {
                        utilWriter.Write(groupUpdate.UpdatedXml);
                    }
                    utilWriter.AppendNewLine();

                    WriteUnwrittenConfigDeclarationsRecursive(declarationUpdatesChild, utilWriter, linePosition + indent, indent, false);
                    utilWriter.AppendSpacesToLinePosition(linePosition);
                    utilWriter.Write("</sectionGroup>\r\n");
                }
            }
        }